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>心电学习笔记(210)室速?
心电学习笔记(210)室速?
2026-01-05 05:44:32
心电学习笔记(210)室速?
近日遇见一份图,长这样:
图1-a.心率208次/分,RR间期匀齐,QRS波宽度为200ms>120ms,属于宽QRS波心动过速。
之前分享过识别室速可以使用
aVR导联法
、及
室速积分法
及
肢体导联QRS波反向法
,我发现最好用的还是肢体导联QRS波反向法。
①
有 4 个导联 QRS 主波均呈单相一致,可为正相或负相。②
下壁 3 个导联 QRS 主波均呈单相一致,可为正相或负相。③
有 2 个或 2 个以上其余导联存在与下壁导联主波相反的单相 QRS 波群。
三条里面我觉得第②条最容易记,如果符合②的基础上加上③,那室速的概率就很高了。
但是使用是时要注意:
①注意应用条件为肢体导联为
单相
QRS波,单相的R波或S波,再来判断方向;②下壁导联II III aVF导联如果为方向一致的单相QRS波,即可初步判断为室速;③为快速判断室速的方法,但是
不能
鉴别室速和预激性心动过速。
图1-b.可见该图6个导联均为单相波,符合第①点;II III aVF导联呈单相波,为正相波,符合第②点;I 、aVL、aVR导联呈负向波一致,与下壁导联方向相反,符合第③点。故使用肢体导联QRS波反向法判断,全部符合,判断是室速。
但是因为该方法不能鉴别室速与预激性心动过速。可惜该患者未至我院行电生理检查,故最后结果不能得以证实。
以上仅代表个人目前的想法。欢迎各位老师留言纠错、讨论。
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CONNECT:[ UseTime:0.000528s ] mysql:host=127.0.0.1;port=3306;dbname=no_67808;charset=utf8mb4
SHOW FULL COLUMNS FROM `fenlei` [ RunTime:0.000618s ]
SELECT * FROM `fenlei` WHERE `fid` = 0 [ RunTime:0.005678s ]
SELECT * FROM `fenlei` WHERE `fid` = 63 [ RunTime:0.000442s ]
SHOW FULL COLUMNS FROM `set` [ RunTime:0.000490s ]
SELECT * FROM `set` [ RunTime:0.013719s ]
SHOW FULL COLUMNS FROM `article` [ RunTime:0.000704s ]
SELECT * FROM `article` WHERE `id` = 457848 LIMIT 1 [ RunTime:0.003925s ]
UPDATE `article` SET `lasttime` = 1768300150 WHERE `id` = 457848 [ RunTime:0.017758s ]
SELECT * FROM `fenlei` WHERE `id` = 65 LIMIT 1 [ RunTime:0.000294s ]
SELECT * FROM `article` WHERE `id` < 457848 ORDER BY `id` DESC LIMIT 1 [ RunTime:0.000506s ]
SELECT * FROM `article` WHERE `id` > 457848 ORDER BY `id` ASC LIMIT 1 [ RunTime:0.000312s ]
SELECT * FROM `article` WHERE `id` < 457848 ORDER BY `id` DESC LIMIT 10 [ RunTime:0.013972s ]
SELECT * FROM `article` WHERE `id` < 457848 ORDER BY `id` DESC LIMIT 10,10 [ RunTime:0.020572s ]
SELECT * FROM `article` WHERE `id` < 457848 ORDER BY `id` DESC LIMIT 20,10 [ RunTime:0.038588s ]
0.189547s